Wear-resistant long-life ac charging cable

Abstract

The utility model discloses a kind of wear-resistant long-life alternating current charging cables, relate to wire and cable technical field, a kind of wear-resistant long-life alternating current charging cables, including several power lines, several signal lines and the outer sheath layer of wrapping the power line and signal line, the power line includes power line conductor and the first insulating layer covered in the power line conductor outside, the signal line includes composite stranded core, second insulating layer and braided layer in order from inside to outside.In second insulating layer outside, a layer of braided layer is covered, improve its tensile and torsional properties.The utility model has wear resistance, high temperature resistance, high tensile strength and torsional properties, increase cable life and safety.

Description

Technical Field

[0001] This utility model relates to the field of wire and cable technology, specifically, to a wear-resistant, long-life AC charging cable. Background Technology

[0002] With the rapid development of new energy vehicles, existing AC charging cables, due to their use of TPE (Thermoplastic Elastomer) and PVC sheath materials with poor weather resistance, are prone to hardening, cracking, or softening under ultraviolet radiation, humid heat, and extreme temperatures (-40℃ to 150℃), leading to decreased abrasion resistance and shortened insulation life. Simultaneously, traditional single-layer sheaths or rigid armor structures struggle to balance abrasion resistance and flexibility; frequent bending and dragging during dynamic use easily cause damage to the conductor, and insufficient flame retardant properties exacerbate safety hazards in high-temperature environments. These defects severely restrict cable life and safety, necessitating the development of long-life cable solutions with high abrasion resistance and adaptability to complex environments. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a wear-resistant, long-life AC charging cable, which is a long-life cable with high wear resistance and adaptability to complex environments, thereby increasing cable safety.

[0004] The present invention solves the above problems through the following technical solution:

[0005] A wear-resistant, long-life AC charging cable includes several power lines, several signal lines, and an outer sheath covering the power lines and signal lines. Each power line includes a power conductor and a first insulation layer covering the conductor. Each signal line, from the inside out, includes a composite stranded core, a second insulation layer, a braided layer, and a third insulation layer. A braided layer is placed over the second insulation layer to improve its tensile and torsional resistance.

[0006] Furthermore, the power conductor is made of stranded tough copper conductor. The power conductor is the sixth type of copper conductor in standard GB / T3956. Preferably, the power conductor is made of stranded high elongation copper wire, and the copper wire is regularly distributed to ensure uniform stress in all directions and guarantee the stability of the conductor structure.

[0007] Furthermore, the outer sheath layer has a serrated outer shape.

[0008] Furthermore, the outer sheath layer is made of a wear-resistant material.

[0009] Furthermore, the outer sheath layer is made of thermoplastic polyurethane elastomer rubber (TPU). The use of TPU in the outer sheath layer increases its abrasion resistance, and the sheath is integrally extruded into a serrated shape to increase its contact area with air, resulting in better heat dissipation and extended service life. TPU has high abrasion resistance and good weather resistance, is non-toxic, and offers a variety of processing methods, making it ideal for outdoor use of charging cables.

[0010] Furthermore, the composite stranded core is a composite stranded signal conductor and aramid yarn. The signal wire is made of a mixture of tough copper conductor and high-strength aramid yarn, which improves the tensile strength and torsional resistance of the conductor. At the same time, a braided layer is covered outside the second insulation layer of the signal wire, which not only improves its electrical performance but also protects the composite stranded core.

[0011] Furthermore, the signal line conductor is made of stranded tough copper conductor. The signal line conductor is the sixth type of copper conductor in standard GB / T3956.

[0012] Furthermore, the composite stranded core adopts a solid structure, without filler rope and wrapping tape, making it fit more tightly with the outer sheath layer.

[0013] Furthermore, the number of signal lines is 1 to 3.

[0014] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0015] (1) The outer sheath layer of this utility model is made of wear-resistant material, which has high wear resistance. The serrated shape of the outer sheath layer increases the contact area between the sheath surface and the air, which can improve the heat dissipation performance of the cable and improve its high temperature resistance.

[0016] (2) The present invention covers the signal line insulation layer with a braided layer, which not only improves its electrical performance but also protects the insulation core.

[0017] (3) The signal line of this utility model is made of a mixture of tough copper conductor and high-strength aramid yarn, which improves the tensile strength and torsional performance of the conductor on the basis of the existing model.

[0018] (4) This utility model has wear resistance, high temperature resistance, high tensile strength and torsion resistance, which increases the cable life and safety. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is an enlarged schematic diagram of the signal line;

[0021] Among them, 1-power line; 2-power line conductor; 3-first insulation layer; 4-aramid yarn layer; 5-braided layer; 6-signal line; 7-outer sheath layer; 8-signal line conductor; 9-third insulation layer. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the embodiments, but the implementation of the present invention is not limited thereto.

[0023] Example 1

[0024] Combined with appendix Figure 1 and Figure 2 As shown, a wear-resistant, high-life AC charging cable includes several power lines 1, several signal lines 6, and an outer sheath 7 enclosing the power lines 1 and signal lines 6. Each power line 1 includes a power conductor 2 and a first insulation layer 3 covering the power conductor 2. Each signal line 6, from the inside out, includes a composite stranded core, a second insulation layer, a braided layer 5, and a third insulation layer 9. A braided layer 5 is placed over the second insulation layer to improve its tensile and torsional resistance. Preferably, the braided layer 5 is a tin-plated braided layer.

[0025] Furthermore, the power conductor 2 is made of stranded tough copper conductor. The power conductor 2 is the sixth type of copper conductor in standard GB / T3956. Preferably, the power conductor 2 is made of stranded copper wire with high elongation, and the copper wire is regularly distributed to ensure uniform stress in all directions and guarantee the stability of the conductor structure.

[0026] Furthermore, the outer sheath layer 7 has a serrated outer shape.

[0027] Furthermore, the outer sheath layer 7 is made of a wear-resistant material.

[0028] Furthermore, the outer sheath layer 7 is made of thermoplastic polyurethane elastomer rubber (TPU). The use of TPU in the outer sheath layer 7 increases its abrasion resistance, and it is integrally extruded into a serrated shape through die extrusion, increasing its contact area with air, resulting in better heat dissipation and extended service life. TPU has high abrasion resistance and good weather resistance, is non-toxic, and offers a variety of processing methods, making it ideal for outdoor use of charging cables.

[0029] Furthermore, the composite stranded core consists of a composite stranded signal conductor 8 and aramid yarn 4. The signal wire 6 is made of a mixture of tough copper conductor and high-strength aramid yarn, which improves the tensile strength and torsional resistance of the conductor. At the same time, a braided layer 5 is covered outside the second insulation layer of the signal wire 6, which not only improves its electrical performance but also protects the composite stranded core.

[0030] Furthermore, the signal line conductor 8 is made of stranded tough copper conductor. The signal line conductor 8 is the sixth type of copper conductor in standard GB / T3956.

[0031] Furthermore, the composite stranded core adopts a solid structure, without filler rope and wrapping tape, making it fit more tightly with the outer sheath layer 7.

[0032] Furthermore, the number of signal lines 6 is 1 to 3.

[0033] This invention utilizes an outer sheath made of wear-resistant material, exhibiting high wear resistance. The serrated surface of the outer sheath increases the contact area between the sheath surface and air, improving the cable's heat dissipation and high-temperature resistance. The signal wire is made of a mixture of tough copper conductor and high-strength aramid yarn, enhancing the conductor's tensile strength and torsional resistance. A braided layer covers the signal wire insulation, improving its electrical performance and protecting the insulated core. This invention features wear resistance, high-temperature resistance, high tensile strength, and torsional resistance, increasing cable life and safety.

[0034] Although the present invention has been described herein with reference to illustrative embodiments, the above embodiments are merely preferred embodiments of the present invention, and the implementation of the present invention is not limited to the above embodiments. It should be understood that those skilled in the art can design many other modifications and implementations, which will fall within the scope and spirit of the principles disclosed in this application.

Claims

1. A wear-resistant, long-life AC charging cable, characterized in that, It includes several power lines (1), several signal lines (6) and an outer sheath (7) that wraps the power lines (1) and signal lines (6). The power lines (1) include a power line conductor (2) and a first insulation layer (3) covering the power line conductor (2). The signal lines (6) include, from the inside to the outside, a composite stranded core, a second insulation layer, a braided layer (5) and a third insulation layer (9).

2. The wear-resistant, long-life AC charging cable according to claim 1, characterized in that, The power line conductor (2) is made of stranded copper conductor.

3. The wear-resistant, long-life AC charging cable according to claim 1, characterized in that, The outer sheath layer (7) has a serrated outer shape.

4. The wear-resistant, long-life AC charging cable according to claim 3, characterized in that, The outer sheath layer (7) is made of wear-resistant material.

5. The wear-resistant, long-life AC charging cable according to claim 4, characterized in that, The outer sheath layer (7) is made of TPU material.

6. The wear-resistant, long-life AC charging cable according to claim 1, characterized in that, The composite stranded core consists of a composite stranded signal conductor (8) and aramid yarn (4).

7. The wear-resistant, long-life AC charging cable according to claim 6, characterized in that, The signal line conductor (8) is made of stranded copper conductor.

8. The wear-resistant, long-life AC charging cable according to claim 6, characterized in that, The composite stranded wire core has a solid structure.

9. The wear-resistant, long-life AC charging cable according to claim 1, characterized in that, The number of signal lines (6) is 1 to 3.

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